docs: def getattr_sdk(attr, name):
      """
      Filter SDK attributes
  
      Args:
          attr(attribute): Attribute as returned by :func:`getattr`.
          name(str): Attribute name.
  
      Returns:
          `attr` if passed.
      """
      if inspect.isroutine(attr):
          if hasattr(attr, '_sdkmeta'):
              return attr
      raise AttributeError(name)